L-lysine
L-lysine is an amino acid that is used to shorten the duration of a blister. Studies show that L-lysine can function as a preventive and curative method. According to Harvard Health Publications, lysine helps inhibit the amino acid that facilitates the growth of the blisters. However, more research needs to be done to confirm its effectiveness. L-lysine [5] may also help limit fever blister outbreaks.
Recommended Doses range is from 500-300 milligrams (mg). Follow the instructions on the package.